How to switch the notebook dual graphics card

I use Lenovo notebook, the video card is Nvidia's gt540m graphics card, I explained that I did not find the independent graphics card and integrated graphics switching hotkey, want to know how to quickly switch the video card, run 3D program when the full use of discrete graphics card.

Now the new notebook as long as there is a discrete video card is basically dual graphics switch, the difference is that the Nvidia and AMD graphics card due to different drivers, so the switch mode is not the same, if you need to customize the setting of some programs to start a discrete graphics card, At some point in order to ensure battery life and low calorific value only using the core graphics card, you need to set up in the Control Panel, you can not use the default settings.

Attention:

1, regardless of the NVIDIA&AMD technology, the realization does not restart the computer can automatically quickly switch the different graphics output, only supports the Windows VISTA/7 system.

2, if it is the default, it is generally programmed to add the GPU acceleration function to wake up the independent graphics card, such as Adobe's large number of software, 3D games, and so on, in many cases, some of our running tools do not have the ability to wake the discrete graphics card, It is necessary to specify in the driver control Panel of the video card that the program needs to run with a discrete graphics card to perform the running of the discrete graphics card.

The following is a commentary on the graphics driver Control Panel for NVIDIA and AMD-dual graphics switching:

Nvidia's dual graphics switch settings:

The Optimus technology developed by Nvidia does not require user intervention, the system automatically determines the current task and then selects the video card to perform the task. Of course, if the driver is not recognized correctly, or some programs do not need to use a discrete graphics card, but users want to run with a discrete video card can also be manually set the program to run with a discrete video card, but this will increase the thermal burden of the notebook, resulting in a high cooling fan turn the result is the accumulation of dust faster, Frequent dust removal is required.

How to set up the full use of discrete graphics when running 3D programs:

1. Right-click on the desktop and select Nvidia Control Panel on the popup menu:

2, then pop up the Nvidia Settings menu, select Manage 3D settings, you will see the global use of Set or unique options, after selecting a discrete video card, the system will perform the task of using the video card you choose:

Graphics settings for individual programs

1, choose to add the program you need to set, such as we need to set KMP for high-performance graphics, select this program.

2. Select the discrete graphics card that the program needs to use:

3, there is a more convenient function, that is, for each program, you can also choose which video card it calls at any time.

For a desktop program, click the right mouse button:

4, if the right button does not provide the ability to select the video card, you need to make the following settings:

Or go back to the 3D Setup interface, select View, and the last item in the drop-down menu "add ' run ' with graphics processor ' to the context menu" before you tick:

5, then back to the program, right click on the time, there will be an option to let you choose whether the program is used alone or set display

Dual graphics switching method using AMD graphics cards:

Desktop right-click to enter "Configure exchangeable display card" option

In the switching interface, we can see the display core type that can be switched, the use of "high-performance GPU", the use of "power-saving GPU," said, from the interface options we can see the switch between the single display and set is actually the performance and efficiency between the love you switch, independently provides a strong performance but also a large power consumption, Although there is a difference in performance and independence, it is much lower than power consumption. When the user needs a lot of graphics operations (HD playback, 3D games) when the switch alone can play the maximum performance of the machine, when the user needs longer battery life and lower noise when switching to set is a good note.